/** * @author Ian Johnson * @version 1.0 * Dhanya-05.12.2012- included an additional header */ #ifndef SLSQT2DZOOMER_H #define SLSQT2DZOOMER_H /**included by Dhanya on 05.12.2012 to avoid compile time errors with the latest gcc*/ #include /**end of Change by Dhanya*/ #include #include #include "SlsQt2DHist.h" class SlsQt2DZoomer:public QwtPlotZoomer{ private: SlsQt2DHist* hist; public: SlsQt2DZoomer(QWidget *canvas):QwtPlotZoomer(canvas){ setTrackerMode(AlwaysOn); } void SetHist(SlsQt2DHist* h){ hist=h; } virtual QwtText trackerTextF(const QPointF &pos) const{ QColor bg(Qt::white); bg.setAlpha(200); //QwtText text = QwtPlotZoomer::trackerText(pos); static QwtText text; if(hist){ static char t[200]; sprintf(t,"%3.2f, %3.2f, %3.2f",pos.x(),pos.y(),hist->value(pos.x(),pos.y())); text.setText(t); }else { QPoint p=pos.toPoint(); QwtText text = QwtPlotZoomer::trackerText(p); } text.setBackgroundBrush( QBrush( bg )); return text; } }; #endif